CVE-2026-33814
Medium
Elevated severity or exploit probability.
CVSS base
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS — probability of exploitation (30 days)
0.8%
54.4th percentile
CISA KEV
Not listed
Weakness / dates
CWE-606
Published 2026-05-07 · modified 2026-09-18
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | N | None |
| Availability | H | High |
Timeline
- 2026-05-07 — Published (NVD)
- 2026-09-18 — Last modified (NVD)
Description
When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.
Affected
References
- https://go.dev/cl/761581
- https://go.dev/cl/761640
- https://go.dev/issue/78476
- https://groups.google.com/g/golang-announce/c/qcCIEXso47M
- https://pkg.go.dev/vuln/GO-2026-4918
- https://access.redhat.com/errata/RHSA-2026:22112
- https://access.redhat.com/errata/RHSA-2026:22120
- https://access.redhat.com/errata/RHSA-2026:22121
- https://access.redhat.com/errata/RHSA-2026:23262
- https://access.redhat.com/errata/RHSA-2026:23264
- https://access.redhat.com/errata/RHSA-2026:33120
- https://access.redhat.com/errata/RHSA-2026:33123
- https://access.redhat.com/errata/RHSA-2026:33142
- https://access.redhat.com/errata/RHSA-2026:33150
- https://access.redhat.com/errata/RHSA-2026:34342
- https://access.redhat.com/errata/RHSA-2026:37387
- https://access.redhat.com/errata/RHSA-2026:42644
- https://access.redhat.com/errata/RHSA-2026:43692
- https://access.redhat.com/errata/RHSA-2026:49702
- https://access.redhat.com/errata/RHSA-2026:49712
- https://access.redhat.com/errata/RHSA-2026:50205
- https://access.redhat.com/errata/RHSA-2026:54274
- https://access.redhat.com/errata/RHSA-2026:54283
- https://access.redhat.com/errata/RHSA-2026:54284
- https://access.redhat.com/errata/RHSA-2026:54285
- https://access.redhat.com/errata/RHSA-2026:54286
- https://access.redhat.com/errata/RHSA-2026:54287
- https://access.redhat.com/errata/RHSA-2026:56854
- https://access.redhat.com/errata/RHSA-2026:56912
- https://access.redhat.com/errata/RHSA-2026:57191